Lifemall USB Heated Shawl Wrap Lap Blanket Cushion Winter Warm The USB Heating Blanket is a soft plush velour blanket surrounding a heating pad. Powered by a USB(USB cable length 120CM), this computer blanket plugs it into a Desktop or Laptop, PC or Mac Temperature = 100 F - 113 F(the heated area 35 - 45) Can be used to cover knee, wrapped waist, draped over the shoulders, seat cushion Size:79*46cm . Heating area in the middle, The size of the heating element is 12*20cm.